Southworth, G. V. D., & Southworth, J. V. D. (1952). Heroes of our America. Iroquois Pub. Co.
Lua i Stíl Chicago (17ú heag.)Southworth, Gertrude Van Duyn, agus John Van Duyn Southworth. Heroes of Our America. Syracuse, N.Y.: Iroquois Pub. Co, 1952.
Lua MLA (8ú heag.)Southworth, Gertrude Van Duyn, agus John Van Duyn Southworth. Heroes of Our America. Iroquois Pub. Co, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.